Excavator-bucket



E. J. MOYNIHAN..

EXCAVATOR BUCKET.

APPLlcATloN F|LEn1uLv13.19|a.

1,307,747. Patented June 1919.

3 SHEETS-SHEET l.,

:IAP .h I =1 W im' Patented June 24, 19K)A 3 SHEETS-SHEET 2" E. J. MOYNIHAN.

EXCAV/WOR BUCKET. i APPLICATloNFILD1ULY13,191S. L87,747.

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E. J. MOYNIHAN.

EXCAVATOR BUCKET. APPLICATION man 1uLY13. 191sA Patented J :une 24, 1919*.

3 SHEETS-SHEET 3.

` EGENE J. VirioYNiHAN, or sAN FRANCISCO, CALIFORNIA.

ExcAvrATon-:BUGKET `Specification of Letters vPatent. Pgrtntgid June 24, y1919- Application filed July 13, 1918. Serial N o. 245,775.

To all whom t may Concern: l

' the city and county of4 San Francisco,

f cated Beit known that 1*,EUGENE J'. MOYNIHAN,

a citizen ofthe UnitedStates, residin in tate of California, have invented a new and useful Improvement in ExcavatorfBuckets,` of

. which `the lfollowing lis a specification.

My invention relates'to improvements in excavator bucketswherein a grating operates in conjunction with'the bucket to separate tine from coarse material therein; and the object-s of iny invention are- First, to provide an improved excavator bucket wherein fine may be separated from coarse material duringthe excavating and conveying process;

Secontbto provide an improved bucket of the character' described lia-ving means tor separating the bucket int-o upper and lower compartments andscreening the contents of the upper compartment;

Third, to provide an improved bucket of the class described wherein the contents ot' Athe lower compartment may be discharged independently of the upper compartment and by the saine tripping means;

Fourth, to provide a bucket ot the classdescribed wherein thelower compartment isv arranged topermita full discharge there-- through of the contents from the upper compartinent.

I accomplish these several objects by means of the device disclosed'in the drawings forniing a part of the present specification wherein like characters of reference are used to designate similar parts throughout the said specification and drawings, and in which- Figure l is a` side elevatioifof my iinproved separat'ing bucket;

Fig. 2 is a plan view of Fig. l; v

Fig. 3 is a vertical sectional view taken on linewzl-"sf of Fig. 2 in the direction indi-I Figs. l. and G are enlarged detailed views of an antiti'ictioii retaining latch used in connection with the bucket. Fig. t3 beinga sectional view on line 6-6 ot l `ig. l;

Fig. 7 is a verticall sectional view of a bucket having both upper .and lower coin- 'partrnents tilled';l

Fig. 8 isa sin'iilar-view disclosing the lower compartment discharged; and

Fig. 9 is an enlarged broken vertical scctional view.take`n online 9--9 of Fig. Q.

l Referring to the drawings 4the numeral ,.1

is used to designate in general an excavator The bucket l comprises upper and lower Y sections, said upper section being composed of rearwardlyv extending laterall extensions 7 formed integral with the upper portion ot the front piece 2 and an inner` U-shapcd member S having forwardly extending lateral extensions 9 which are secured to the extensions 7 of the front piece Q, as disclosed in Fig. 2 of the drawings.

A pair of oppositely oit'set members ll are secured tothe outer surfaces ot' theI extensions 7 of the front pieces 2 and by means of a suitable pin 12 have their rear ends connected b v links 1l to a suitable bearing plate 1G on the end of a dipper or bucket handle 18. i

The back of the upper section is t'urthei secured to the dipper handle 18 b v means of a plate or member 19 and a pin .20 mount.- ed within suitable bearings upon the rear of said upper section. From the pin '2U a single bar 2l is hingedly suspended which. -when in a. closed position. extends nearly to the latch aperture l in the trout piece 2.

A grating 22 is rigidly .secured to on top of the bar 2l and when closed with the har 21 operates to separate the bucket l intov upper` and lower coinlinirtments. .said compartments comprising a lower section which consists of a U-shapcd member 2n secured to the front piece 2 and having rearwardly` extending extensions Q7 Slightly greater in width than the rearwardly extending extensions 'T of the front piece Q. the purpose ot' vwhich'will hereinafter be more fully set forth.

A second U-shaped member 2S is providcdwith forwardly extending. extensions 29 which are rigidly secured to the extensions 2T of the member 2G. The extensions QS) are in turn provided with upwardliv extending or vertically disposed extensions :il

lby means of which the entire lower section upper section of the bucket. 1` thereby permitting a free and full discharge ot' the full capacity of the said upper section when said grating 22 is opened.

To the rear of the U-shaped member 28 -are integral lugs 32 rotatably supporting a pin 33 from which is suspended a door 34 to close the lower section or compartment of the bucket 1.

The grating 22 and door 34 are provided with retaining latches 36 and 37 respectively, which latches are described and claimed in a copending application. The latches 36 and 37 are arranged to engage the latch apertures 4 and 6 respectively in the front piece 2 when closed and thereby form upper and lower compartments.

A tripping lever 38 is suspended from thev dipper handle 18 by means of a suitable eyelet 39 and a short chain or other suitable connection 41 extends from the said trip'- ping lever 38 to the latch 37 on the hinged door 34 while a longer' connection 42 extends from the tripping lever 38 to the latch 36 of the grating 22 passing'over a suitable roller or sheave 43, rotatably mounted on the back of the lower section, and passing through an aperture 44 in the member 28. The connection or chain 42 is provided with an obstruction 46 in the shape of a larger link which limi-ts the `passage of t-he chain 42 through the aperture 44 when the grating 22 is closed end of thetripping lever 38 by means of which said lever 38 may be operated.

By the arrangement of the members 2, 7, 8 and 11 of the upper section with the members 26, 27, 28, 29 and 31 secured to said up# per section by means of the extensions 31 it will be observed that II have provided a4 rigid, compact construction which will impart rigidity and strength to the entlre structure and thereby provide an eilicient bucket having two compartments of which the upper one is the lsmaller for. the reason that the4 extensions 27 extend slightly beyond the extensions 7' of' the front piece 2 while the back or U-shaped portion 28 of the lower section is extended a greaterdistance beyond the rear of the U-shaped member 8 of the upper section. This arrangement; therefore provides a two-compartment bucket separated by the grating 22 whereby finer mate-rial may be separated from the coarser or boulders and conveyed to separate conveyers in the following manner:

The bucket is operated in the usual Well known manner to scoop a load of earth, mixed gravel or other similar material.

As the bucket 1 is raised to a horizontal position the smaller particles, such as gravel or loose earth, readily passes through the rating 22 into the lower compartment while larger pieces of earth or rocks, boulders and the like, are retained above the grating.

The bucket 1 is then moved to a position over a car or other conveyer A and the trippine` line 48 is operated to release or trip the latc 1 37 and thereby release the door 34 which will then swing open by gravity and discharge the smaller material into said conveyer A.

The latch 36 of the grating 22 will not be tripped simultaneously with the tripping of the latch 36 for the reason that the connection 41 to the latch 37 of the door 34 is shorter than the connection 42 to the latch 36 of the; .grating Therefore as soon as the door 34 is opened the tension on the line 48 is released until the bucket 1 is moved over a second car or eonveyer B to receive the larger material as is disclosed in Fig. 8 ofthe drawings.

The tripping line 48 is again operated to release .or trip the latch 36 of the grating 22 and said grating 22 then swings into the space provided by the extension ofthe member 28 beyond the member 8 as hereinbcforc vdescribed and clear ot' the upper section or compartment thereby readily permitting a free and full discharge of the full'capacity ofsaid upper section or compartment.

Then both compartments have been discharged or emptied and the bucket 1 lowered to receive the next load the door 34 and gra-ting 22 are' closed .by the action of gravlty and the latches 36 and 3T engage their respective apertures '4 and 6 in the front piece 2.

It is obvious that from the foregoing that I have provided an improved separating bucket separated into compartments as well as improve-d means for discharging the contents of said compartments independently of each other.

Having thus described my invention what I-claim as new and desire to secure by Letters Patent'isl. The combination with a receptacle of a grating hingedly mounted therein to divide said receptacle into upper and lower compartments; and a door hingedlv mounted upon the receptacle to close the lower compartment.

2. The combination with a receptacle of a grating hingedly mounted therein to di- 4vide said receptacle into upper and lower compartments; a door hingedly mounted upon the receptacle to close the lower compartment; and means for tripping the door previously to tripping the grating.

3. A receptacle comprising upper and secured to the grating and to the ltain the same in a closed position.

asomar lower sections, the back of the lower sectiony extending slightly beyondthgJ back of the upper-sectlon; a' grating hingedly mo-unted upon the back of the upper section and arranged to separate the receptacle into upper and lower compartments, and to swing 4into the extension ofy the lower section; a

door hingedly mounted-upon the back of.

.ZLA receptacle comprising upper and lowery sections, the back of the lowerjsection extending slightly beyond the back of the, upper section; a grating hingedly mounted upon the-back of the upper sectionfand arranged to'separate the receptacle flel intduppe'r and lower compartments'and to swing into the extensionof the lower sec-- tion;v a door hingedly mounted upon the -backof the lower sectionand Aarranged to close the bottom of said section; suitable latches securedto the grating and to the door tore'tain the same closed position; and means for tripping the latch of the lowerl door independently of the grating.

5. AQ receptacle4 comprisingfupper and lower sections, said lower section extending' back of the upperl section and having lugs formed integral therewith whereby said lower section may be secured to the upper section; a grating hingedlymounted tothe i receptacle and arranged to form upperand 35,' lower compartments'within the'bucket whenl saidl grating is closed and to swing into theextension of the lower section when opened thereby permitting a discharge of the full capacity of the upper compartment when open; a door hingedly mounted to close the lower section; suitable latches secured to the door and grating to' retain the same in a closed position; and means for tripping door latch independently of and previously to the grating latch whereby thelower comf partment may be emptied without disturbing the contents of the upper compartment.

6. The combination with a dipper handle of an lexcavator bucket secured thereto land having upper and lower sections, said lower section extending slightly back of the upper section; a grating hingedly mounted upon the bucket and arranged `to separate said bucket vinto upper and lower compartments when closed'and to swing intol the eX- .,tension of the lower section when open to permit a full discharge of contents from the upper section; a door hmgedly mounted to close the lower section; suitable llatches mounted upon the doorv and grating; a `tripping lever suspended from the dipper handle ad] a-cent thebucket a connection from the lever to the grating; and a shorter connection from the lever to the door whereby the latch on the door may be released vpreviously to the latch on the grating when the lever is operated. y y

7. The combination with a dipper handle 'fof an excavator bucket secured thereto and having upper and lower sections, said lower section extending slightly back of the upper section; a grating 'hingedly mounted upon the bucket and arranged to separate said bucket into upper and lower compartments when closed' and t0 swing into the eX- v'tension of the lower section when open to permit a full discharge ofcontents from the upper section; a door hingedly mounted to close the llower section; suitable latches mounted upon the door and grating; a tripping lever suspended from the dipper hair dleadjacent `the bucket; aA connection from the lever to the grating; a shorter connec- -tion from the lever to the door whereby the latch on the door may be released previously .to the latch on the grating when the lever is operated; and means for preventing the slack of the longer connection to the grat,- ing latch from Sliding into the lower section when the grating is closed.

8. The combination with a dipper handle of an excavator bucket secured thereto and having upper and lower sections, said lower section extending slightly back of the upper and lower sections, said lower section extending slightly back of the upper section; a grating hingedly mounted upon the bucket and arranged to separate said bucket into upper and lower compartments when closed. and to swing into the extension of the lower section when open to permit affull discharge of contents from the upper'section; a door hingedly mounted to close the lower section; suitable latches mounted uponV the doolgand grating; a tripping lever suspended from the dipper handler adjacent the bucket; a connection from the lever to the grating; a shorter connection from the lever to the door whereby the latch on the nature.

EUGENE J. MOYNllHAN. 

